How can we find duplicate values across multiple columns? For this task, we’ll use two Excel helper formulas: One to concatenate the columns you’re comparing; a second to count the duplicates.

Microsoft Excel is perhaps the most powerful spreadsheet application you can buy. But it also has some simple functions, like finding duplicates in data.

Install the Remove Duplicates add-on from the Google Workspace Marketplace. In your sheet, click Extensions, then Remove Duplicates, and choose: Find Duplicates or Uniques.

In previous versions of macOS, relying on your Mac to automatically track down duplicate photos in your Photo Library wasn't an option, and if ...

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Learn a powerful duplicate content consolidation technique: how to use Python to reorganize canonical clusters to maximize SEO performance.

Google Sheets offers several ways to compare, identify, and remove duplicate data in cells and rows. These features can help you find cells where data matches, then signal that a difference exists ...

There are several ways to find duplicates in a Java List, array or other collection class. The following list describes some of the most commonly used approaches: Use a method in the Java Streams API ...